1. Click on the screen size of the wallpaper you wish to download. 2. Selected wallpaper will appear in new window. 3. Right-click the wallpaper and select "Set as Background"

Mac Instructions

1. Click on the screen size of the wallpaper you wish to download. 2. Selected wallpaper will appear in new window. 3. Save the image to your computer in a location you can remember. 4. Go to System Preferences. 5. Click "Desktop & Screensaver". 6. Select wallpaper saved on your computer.